Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income before non-controlling interests	$ 998	$ 767
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	(91)	(941)
Gain related to pension/post-retirement plans	6	175
Other comprehensive loss, before tax	(85)	(766)
Income tax expense on other comprehensive income	2	26
Other comprehensive loss, net of tax	(87)	(792)
Comprehensive income (loss)	911	(25)
Less: comprehensive income attributable to non-controlling interest	15	13
Comprehensive income (loss) attributable to the Company	$ 896	$ (38)